M. Eisermann. (2006)cite arxiv:math/0612459
Comment: 46 pages, 2 figures. v2: A few remarks have been added and numerous
misprints corrected. v3: Some applications (e.g. to link quandles) have been
added.
J. Carter, A. Crans, M. Elhamdadi, и M. Saito. (2006)cite arxiv:math/0607417
Comment: 48 pages, 43 figures, uses diagram.sty, some proofs appear in
appendix Some typos corrected, minor clarification of statements and notation.